PWM Charge Controllers

Shop PWM charge controllers for simple, cost-effective solar battery charging. PWM controllers can be a practical fit for smaller solar systems where panel voltage is closely matched to battery voltage. Use this collection for RVs, cabins, battery maintenance, small off-grid systems and basic solar charging projects. Compare controller amperage, battery compatibility, display features and wiring requirements before choosing the right model.

Size the controller for the panel and battery

The PWM models here range from compact controllers to higher-current units, and some support only 12V batteries while others also support 24V. Compare the exact model’s rated charging current, allowed panel voltage, supported battery chemistry and temperature rules. Check whether waterproof housing, flush mounting, a display or Bluetooth is included on that model rather than assuming every controller has the same features.

If your array has a substantially higher panel voltage than the battery bank, compare MPPT charge controllers as well. The panel and controller manuals determine the allowed wiring and protection for your installation.